Process of applying and treating strands with viscose, and the article.



zwi/29166" @s -f/ L. M. CHORIER. PROCESS 0F APPLYING AND TBEATING STRANDS WITH VISGOSE, AND THB ARTICLE. APPLIUATION FILED JAN. 19, 1904.

912,812. Patented Feb.16,19o9.

. engineer, citizen of the French Republic, re-

UNITED sTATEs PATENT oEEIoE.

LOUIS MARIE OHORIER, OF

PARIS, FRANCE, ASSIGNOR TO SOCIT FRANCAISE DE LA,

VISCOSE, OF PARIS, FRANCE.

rnoclss orAPPLinNG AND TREATING sTRANDs WITH V1soosE,AND THE ARTICLE.

No. masia.

. Patented Feb. 1e, 1909.

Application led January 19, 1904. Serial No. 189,776.'

To all 'whom it'may concern: l

Be it known that I, Louis MARIE CHORIER,

siding at Paris, France, have invented a ce1'- tain new and useful Process for Applying and Treating Strands with Viscose, andthe Article, of which the following is a specification.

This invention relates to a dressing for thread of cotton, flax, jute, ramie, hemp, &c., and to a process for applying said dressing to these materials. Y

The ordinary dressings, for thread of cotton, flax, jute, &c., and more `especially for materials intended for lace-makingvand the like, contain as their agglutinant principle generally starch, dextrin, gelatin or Wax. Such dressings have but slight resistance especially to the action of water, and cannot withstand in an Way theordinary dyeing b: `ths, sothat it 1s necessary to die the material before applying the dressing thereto with the consequence that the range of dye is restricted toa limited number ofshades o r colors.

Now according to this invention a dress-- ing is employed which consists ot' a coating of viscose applied directly to a thread of cotton, even raw or unbleached, flax, hemp, &c., in such a marinera-s to envelop the matcrial completely with a sheath-like covering that may he' transparent or dull as desired and which constitutes a lixed dressing'which can withstand not only the action of water and heat, but also the action of all ehel-nical agents. rl'he improved dressing. may he bleached and be dyed any color or shade, even' e the most delicate. It even allows the bleaching agent and the dye to penetrate completely .throughout the dressed material. The improved dressing also imparts a homogeneous and brilliant surface which also heightens the gloss or brightness of the colors. It also imparts a stiifness and an appearance similar to that of animal hair,

y which renders the producty capable of retaining the finest gofering' orembossing. Finally the strength of the original thread is increased considerably and the adhesion of the dressing is such that it'appcars to be integral with the material to which it is applied, and from which it cannot he separated.

The viscose employed for the purpose of dressed, is'passedinto water -this invention may be produced in anyy desirable Way, it preferably consisting in the combination of caustic soda and disuld of carbon upon cellulose. An aqueous solution thereof contains a greater or less quantity of dissolved cellulose according to the uses to Which it is to be applied.

The accompanying drawing shows an apparatus for carrying out the new process l.iccording to my invention.

The improved process for the application ot the improved dressing or coating of viscose on the said threads, consists substantially in causing the thread to pass in succession through Water, viscose, a chemical hath` (preferably a solution of any salt ofn solution of hydrochloric acid), and finally washing the thread Sac., in water.

A suitable arrangement and operation of apparatus for vcarrying out *the improved process is as follows: The fithread to he dressed is wound, is carriet'lon a reel a rotating ou its axis Z and is unwound theret'rom and led'to small rollers c e which are immersed in water in a trough d. The thread passes thence to a pulley e whence it is led to and immersed in a trough containing viscose in which the thread is guided to an adjustable draw-hole g from which it issues coated witha uniform layer of dissolved cellulose which is precipitated or erably ot' au anunoniacal salt having a co1 been etfccted, the thread is caused by means ot grooved rollers to enter and pass to and from in successive and systematic baths z 7 of-salt water containlng 20 per cent. of sea salt, wherein it is freed from the impurities aecompanymg the vlscose. The thread then enters and travels to-and-fro in an acid hath (for instance of 3 ier cent. by hydrochloric acid) in which t 1e Xanthate ot cellulose eonstitut ing the viscose, is redecoxnposed or regenerated into an insoluble form ot' the cellulose which was originally dissolved. lFinally the thread after having been thus m which frees aculating action. When-the coagulation has it from an excess of acid. lThe thread is lusual methods.

, From the foregoing description it will be understood that a thread is produced having -a sheet-like covering or envelop of viscose which is directly applied to the thread without the use of adhesive material, and the individually coated threads fully enveloped with viscose are employed in Weaving 'a fabric.

- Having thus described and ascertained the nature of my invention, I declare that what I claim is:

1. The herein described process consisting in fully enveloping an individualthread with a coating ofyiscose by passing the thread lthrough a quantity of the viscose and a f draw-opening to regularly apply theviscose around the thread, and then passing the coated thread through baths for fixing, co-v agulating and washing the same.

2. An article of manufacture consisting of nesses. Y

LOUIS MARIE C I-IORIER.v Witnesses:

HANsoN C. COXE, CARL BLUM.

with a coatf I 

